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串口通信程序中串行口设置源代码,简单方便,容易看懂
串口通信程序中串行口设置源代码,简单方便,容易看懂-Serial communication serial port to set the program source code, simple and convenient, easy to understand
- 2023-07-18 06:40:02下载
- 积分:1
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脉冲噪声建模与IEEE802.11和蓝牙的共存研究
本文介绍了IEEE 802.11和蓝牙之间的干扰问题。这些完善的通信标准经常一起使用同时进行。因为这两个标准工作在ISM频段在2.45千兆赫,它们彼此干扰。除了这一点,从例如干扰微波炉,加热过程,电动马达和无绳电话也发生在ISM频段。由于这个干扰问题,模型已开发在MATLAB中以进一步调查这些干扰,对于用户的影响。干扰是使用众所周知的A级模型脉冲噪声模型。干扰模型参数在模型,因此噪声源(S)由一组从实际测量所导出的参数描述。型号为IEEE802.11传统/ b和蓝牙都是基于上发表MATHWORKS的用户社区工作。为了获得性能的标准,从模型结果以BER(误码率)和PER(包错误率)。当蓝牙被用作语音链路,音质也可以表现直接通过简单地收听语音输出文件进行评估。为了能够追踪特定的问题的原因,测量工具也被包含在模型中,以深入了解是什么原因造成位/数据包错误。已经开发的模型描述的干扰问题,通过利用状态机描述该标准的现实世界的用法。由于问题的复杂性,也为模型是用户友好的,本文不是由一个彻底的数学推导描述为不同的调制方式误码率的概率。在推导对于这些已经完成,因此,进行了总结并比较时模型进行验证。该模型已发展为一个概念证明进行进一步的工作以全面支持当前和未来的IEEE标准,IEEE 802.11和蓝牙。
- 2023-08-02 11:35:03下载
- 积分:1
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TCP/IP协议是一个比较复杂的协议集,有很多专业书籍介绍。在此,我仅介绍其与编程密切相关的部分:以太网上TCP/IP协议的分层结构及其报文格式。...
TCP/IP协议是一个比较复杂的协议集,有很多专业书籍介绍。在此,我仅介绍其与编程密切相关的部分:以太网上TCP/IP协议的分层结构及其报文格式。-TCP/IP protocol is a more complex set of agreements, there are many professional books introduced. Here, I just introduced its programming and closely related to the part : Ethernet TCP/IP protocol to the hierarchical structure and its message format.
- 2022-06-27 06:31:05下载
- 积分:1
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LTE 3GPP channel modeling using matlab
LTE 3GPP channel modeling using matlab.
Generates the correlated tap coefficients of the MIMO tapped delay line
% model to be used during one iteration of the main loop. The function
% performs a double interpolation, first in the fading vector domain,
% to collect the fading samples corresponding to the (sub)chip-spaced time
% samples, then in the tap domain, to match the delays of the PDP to
% the sample instants of the simulation. This second interpolation complies
% with the description in TR 25.869
- 2022-05-20 16:04:14下载
- 积分:1
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在这个仿真模型,16
In this simulink model , 16-QAM modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal
is demodulated and given to the detector where it is matched filtered and down-sampled .The effects of symbol timing offset
can be seen by varying the phase of down-sampling
operation.The signal transmitted is recovered
at the detector output.-In this simulink model , 16-QAM modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal
is demodulated and given to the detector where it is matched filtered and down-sampled .The effects of symbol timing offset
can be seen by varying the phase of down-sampling
operation.The signal transmitted is recovered
at the detector output.
- 2022-07-24 17:48:41下载
- 积分:1
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标准 OFDM
这个程序是使用 FFT 在不同信道条件、 频率选择性信道下和使用不同的值的最大多普勒频移的平坦衰落信道下的 OFDM 仿真
- 2022-05-21 13:25:55下载
- 积分:1
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RS232口通讯,DELPHIc程序
RS232口通讯,DELPHIc程序-RS232 communication port, DELPHIc procedures
- 2023-08-05 22:50:03下载
- 积分:1
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各种通信方式原理及其课件,从最基础到最新通信技术
各种通信方式原理及其课件,从最基础到最新通信技术-Various means of communication principles and courseware, from the most basic to the latest communication technology
- 2022-05-07 10:42:01下载
- 积分:1
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通过打印口(rs232)测试pic编程器的小程序。
通过打印口(rs232)测试pic编程器的小程序。-This is a small program to test pic progamme implements by LPT(rs232).
- 2022-08-20 02:15:13下载
- 积分:1
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rfc3023:XML媒体类型
RFC3023:XML媒体类型
- 2022-03-23 14:24:21下载
- 积分:1